<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
</head>
<div class="mx-5 mb-4" style="width: 300px;">
   <div class="input-group mb-3">
	    <div class="input-group-prepend">
	        <button class="btn btn-outline-secondary" type="button" disabled="disabled" value="">关键字检索</button>
	    </div>
	    <input class="form-control" id="keyWord">
   </div>
   <div class="overflow-auto p-3 mb-3 mb-md-0 mr-md-3 bg-light rounded" style="max-width: 700px; max-height: 250px;" id="keyWordSearchContent">
      
   </div><br>                                                             
</div>
	          
	     
<div class="" style="width: 1000px;">
	<div class="row">
	     <label class="mx-3 mb-5">分类检索：</label>
	     <div class="mx-3 mb-5" style="width: 170px;">
	        <div class="input-group mb-3">
		        <div class="input-group-prepend">
		            <button class="btn btn-outline-secondary" type="button" disabled="disabled" value="">科目</button>
		        </div>
		        <select class="custom-select" id="subject" aria-label="Example select with button addon"  >
	                <option id="option" value="001">数据结构</option>
	                <option id="option" value="002">操作系统</option>
	                <option id="option" value="003">安卓程序设计</option>
	                <option id="option" value="004">web编程</option>
	                <option id="option" value="005">管理信息系统</option>
	           </select>
	        </div>                                                                     
	     </div>

	     <div class="mx-3 mb-5" style="width: 170px;">
	        <div class="input-group mb-3">
		        <div class="input-group-prepend">
		            <button class="btn btn-outline-secondary" type="button" disabled="disabled" value="">知识点</button>
		        </div>
		        <input class="form-control" id="knowledgePoint" >
	        </div>                        
	     </div>
	</div>
	<div class="overflow-auto p-3 mb-3 mb-md-0 mr-md-3 bg-light rounded" style="max-width: 700px; max-height: 250px;" id="classSearchContent">   </div><br><vr>
	     
</div>